ALTO TX412B 600W 12" Battery Powered PA Speaker Instruction Manual

Introduction

The ALTO TX412B is a 600W 12" battery-powered PA speaker designed for mobile performances and events where power access is limited. This speaker offers high-quality sound, a 2-channel mixer, and Bluetooth connectivity, including True Wireless Stereo (TWS) linking for expanded sound systems. Its robust design and versatile features make it suitable for various applications, from busking to small-to-medium sized venues.

Figure 1: Front-side view of the ALTO TX412B PA Speaker, showcasing its compact design and integrated handle.

Safety Information

Before operating the ALTO TX412B speaker, please read and understand all safety instructions. Keep this manual for future reference. Always ensure proper ventilation and avoid exposing the unit to moisture or extreme temperatures. Disconnect the power cable during electrical storms or when unused for long periods.

Package Contents

• TX412B Speaker
• Power Cable (6 ft. / 183 cm)
• Quickstart Guide
• Safety & Warranty Manual

Setup

Unpacking and Placement

Carefully remove the speaker from its packaging. The TX412B can be used in several configurations:

• Pole-Mounted: Utilize the integrated 36mm standard speaker pole socket for elevated sound projection.
• Floor Wedge: Position the speaker on its side for use as a stage monitor.
• Stand-Alone: Place the speaker upright on a stable, flat surface.

Figure 2: The ALTO TX412B PA Speaker highlighting its 36mm standard speaker pole socket and mix output for versatile placement and connectivity.

Connecting Power

Connect the included power cable to the AC input on the rear panel of the speaker and then to a grounded power outlet. The TX412B is battery-powered, but charging or extended use requires AC power.

Figure 3: Detailed view of the rear panel, highlighting the power input, mixer controls, and battery indicator.

Operating Instructions

Power On/Off

Press the POWER switch located on the rear panel to turn the speaker on or off. The power indicator LED will illuminate when the unit is on.

Input Connections (2-Channel Mixer)

The TX412B features a 2-channel mixer with versatile input options:

• Channel 1 & 2: Each channel has a combination XLR/TRS input. Use these for microphones (XLR) or line-level instruments/devices (1/4" TRS). Adjust the gain for each channel using the respective knobs.
• Bluetooth Input: The Bluetooth input acts as a third channel for wireless audio streaming.

Figure 4: Close-up of the mixer section on the rear panel, showing input jacks, gain controls, and the Bluetooth pairing button.

Bluetooth Connectivity

The TX412B allows seamless wireless audio streaming from any Bluetooth-enabled device.

1. Ensure the TX412B is powered on.
2. Press the Bluetooth pairing button on the rear panel. The Bluetooth LED will flash, indicating it's in pairing mode.
3. On your audio device (smartphone, tablet, laptop), search for "ALTO TX412B" in the Bluetooth settings and select it to pair.
4. Once paired, the Bluetooth LED will glow solid, and you can stream audio wirelessly.

Figure 5: Illustration of a laptop and smartphone wirelessly connected to the TX412B speaker via Bluetooth for audio streaming.

True Wireless Stereo (TWS) Linking

To achieve stereo sound, you can link two TX412B speakers wirelessly:

1. Power on both TX412B speakers.
2. On the first speaker (which will be the left channel), press and hold the Bluetooth pairing button until the LED flashes rapidly.
3. On the second speaker (right channel), press and hold the Bluetooth pairing button until the LED flashes rapidly.
4. The speakers will automatically link. Once linked, the Bluetooth LED on both speakers will glow solid.
5. Pair your audio device to the first speaker as described above. Audio will now play in stereo across both linked speakers.

Figure 6: Two TX412B speakers positioned for True Wireless Stereo (TWS) operation, providing a wider soundstage.

Contour EQ

The TX412B includes a Contour EQ switch on the rear panel. This setting provides a pre-set equalization curve optimized for music playback, enhancing bass and treble frequencies. Engage this switch for a fuller sound when playing recorded music.

Mix Output

The Mix Output (XLR) allows you to send the combined audio signal from the TX412B to another speaker or mixing console. This is useful for expanding your sound system or sending a feed to a recording device.

Battery Status

The rear panel features LED indicators for battery status (100%, 75%, 50%, 25%, Low). Monitor these indicators to ensure sufficient power for your performance. The speaker can operate for up to 10 hours on a full charge.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Avoid using solvents or abrasive cleaners.
• Storage: Store the speaker in a cool, dry environment away from direct sunlight and extreme temperatures.
• Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Recharge the battery regularly, even if the speaker is not in use for extended periods.
• Grille: Ensure the metal grille is free from dust and debris to maintain optimal sound dispersion.

Troubleshooting

Specifications

Figure 7: The ALTO TX412B PA Speaker illustrating its physical dimensions (15.0" x 13.5" x 23.7") and weight (29.3 lbs).

Warranty and Support

The ALTO TX412B speaker is manufactured by inMusic Brands Inc. For detailed warranty information, please refer to the included Safety & Warranty Manual or visit the official ALTO Professional website. Product support, including FAQs and additional resources, can also be found on the manufacturer's website.

Optional protection plans may be available for purchase. Please refer to your retailer for details on extended warranty options.

Manufacturer Website: www.altoproaudio.com

Official Product Videos

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